RecruitingPhase 2NCT07238712

Optimization of Post-transplantation Benadamustine and Cyclophosphamide in Patients With High-risk Myeloid Malignancies and a Partially Mismatched Donor

Optimization of Post-transplantation Benadamustine and Cyclophosphamide in Patients With High-risk Myeloid Malignancies and a Partially Mismatched Donor (APTBCy)


Sponsor

St. Petersburg State Pavlov Medical University

Enrollment

60 participants

Start Date

May 10, 2025

Study Type

INTERVENTIONAL

Conditions

Summary

Optimization of bendamustine-containg graft-versus-host disease (GVHD) prophylaxis to reduce the incidence of secondary haemophagocytic lymphohistiocytosis and GVHD


Eligibility

Min Age: 18 YearsMax Age: 70 Years

Inclusion Criteria6

  • Patients with indication for allogeneic hematopoietic stem cell transplantation
  • Patients with \<10/10 HLA-matched related or unrelated donor available. The donor and recipient must be identical by the following genetic loci: HLA-A, HLA-B, HLA-Cw, HLA-DRB1, and HLA-DQB1.
  • Peripheral blood stem cells or bone marrow as a graft source
  • Diagnosis:
  • Acute myeloid leukemia Chronic myeloid leukemia, Ph+ Myelodysplastic Syndromes Myeloprolipherative neoplasms - High-risk disease defined as: Acute myeloid leukemia: \>5% of clonal blasts in bone marrow despite adequate previous induction therapy or allogeneic stem cell transplantation Myelodysplastic Syndrome: \>5% of blasts despite previous therapy Myeloid malignancy with with -7 or complex karyotype, or p53 mutation regardless of blast count in bone marrow Treatment-related myelodysplastic syndrome Second or subsequent allogeneic HCT after relapse of a myeloid malignancy Chronic myelomonocytic leukemia Myeloprolipherative neoplasms, unclassifiable
  • \- No severe concurrent illness

Exclusion Criteria6

  • Patients with indication for allogeneic hematopoietic stem cell transplantation
  • Patients with \<10/10 HLA-matched related or unrelated donor available. The donor and recipient must be identical by the following genetic loci: HLA-A, HLA-B, HLA-Cw, HLA-DRB1, and HLA-DQB1.
  • Peripheral blood stem cells or bone marrow as a graft source
  • Diagnosis:
  • Acute myeloid leukemia Chronic myeloid leukemia, Ph+ Myelodysplastic Syndromes Myeloprolipherative neoplasms - High-risk disease defined as: Acute myeloid leukemia: \>5% of clonal blasts in bone marrow despite adequate previous induction therapy or allogeneic stem cell transplantation Myelodysplastic Syndrome: \>5% of blasts despite previous therapy Myeloid malignancy with with -7 or complex karyotype, or p53 mutation regardless of blast count in bone marrow Treatment-related myelodysplastic syndrome Second or subsequent allogeneic HCT after relapse of a myeloid malignancy Chronic myelomonocytic leukemia Myeloprolipherative neoplasms, unclassifiable
  • \- No severe concurrent illness

Interventions

DRUGRuxolitinib

; Days -1 through +21: ruxolitinib 10 mg/kg/day p.o.

DRUGAbatacept (Orencia)

Days -1,+5, +14, +21 abatacept 10 mg/kg/day i.v.


Locations(1)

Pavlov University

Saint Petersburg, Russia

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NCT07238712


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